Since my husband and I are both retired, I don't have too many time restraints. Some days I sew 8 hours, others none. We travel many times throughout the year to see our kids, so no sewing then; once a month I spend 5-6 nights at a quilt retreat and sew maybe 10 or more hours per day. If you are anxious about spending too much time, that makes the time you do sew less fun, so cut back. Sometimes the season depends on how much I sew too and how much time I need to devote to outside work, so be your own judge. Remember quilting is supposed to be fun so make it fit into your schedule.